Features 1.DUAL MODE: Latest Bluetooth 5.3 and EDR adapter, support dual mode (BR/EDR and low power controller). Quick response and better anti interference, say goodbye to delay and lag. Anti interference ability is improved. Enjoy a wireless desktop with flexible and easy operation. 2.FAST AND STABLE: Bluetooth 5.3 improves the stability of the connection and reduces the possibility of signal interruption. In open space, in open space, the maximum transmission rate is up to 3Mbps and the transmission distance is up to 20 meters. 3.HD SOUND QUALITY: support SBC high definition sound decoding technology, 44.1KHz high sampling rate, CD grade HiFi stereo sound quality, crystal clear sound quality, enjoy the music. 4.BLUETOOTH 5.3: High performance Bluetooth 5.3 chip, support for Bluetooth dual mode, 3Mbps high bandwidth, higher transmission rate, lower latency and low loss data transmission, rapid response, stronger anti interference, goodbye to intermittent, lagging problems. 5.WIDE COMPATIBILITY: Support for Windows 8.1 10 11, support Bluetooth speakers, headphones, keyboards, mice, Bluetooth printers and stereo headphones. (Does not support for XP, for Win7 8, for OS X system use). specificationItem Type: USB Bluetooth 5.3 Adapter_x000D_ Material: ABS_x000D_ Bluetooth Chip: for ATS2851_x000D_ Bluetooth Version: V5.3 Compatible with 5.2/4.2/4.2 LE/4.0/2.1+EDR_x000D_ Frequency Range: 2.4G?2.4835GHz_x000D_ Transmission Distance: 20m/21.9yd_x000D_ Transmission Rate: 3Mbps_x000D_ Supported Protocols: A2DP, HSP, AVRCP, HID, PAN, GAVDP, DID, IOPT_x000D_ Sound Decoding: AptX Adaptive, AptX HD, AptX LL, AptX, SBC_x000D_ Input Interface: USB (Drive Free), AUX Sound_x000D_ Supported Systems: for Windows 8.1 10 11 PackageList 1 x Bluetooth Adapter 1 x Instruction Manual